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* keyboard.h (EVENT_HAS_PARAMETERS): Definition changed - all events

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are not 5 elements long.
	(EVENT_HEAD): Work correctly on all sorts of events, not just
	events with parameters.
	(EVENT_WINDOW, EVENT_BUFFER_POSN, EVENT_SCROLLBAR_BUTTON,
	EVENT_WINDOW_POSN, EVENT_TIMESTAMP): These aren't useful
	anymore; this information may appear twice in an event.  These
	are replaced by the POSN_ accessors, which are meant to be
	composed with the EVENT_START and EVENT_END accessors.
	(EVENT_START, EVENT_END): Two new accessors, to get at the
	starting and ending position of an event.
	(POSN_WINDOW, POSN_BUFFER_POSN, PONS_SCROLLBAR_BUTTON,
	POSN_WINDOW_POSN, POSN_TIMESTAMP): New macros, to futher
	diasassemble the values returned by EVENT_START and EVENT_END.

	* keyboard.h (Qevent_unmodified): Extern declaration replaced by...
	(Qevent_symbol_elements): This.
	(EVENT_HEAD_UNMODIFIED): Use the Qevent_symbol_elements
	property, rather than the Qevent_unmodified property.
This commit is contained in:
Jim Blandy 1992-10-02 23:56:44 +00:00
parent 88cb06568f
commit ac501cd970
1 changed files with 18 additions and 10 deletions
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28
src/keyboard.h
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@ -35,15 +35,23 @@ extern Lisp_Object Vfunction_key_map;
/* True iff EVENT has data fields describing it (i.e. a mouse click). */
#define EVENT_HAS_PARAMETERS(event) \
(XTYPE (event) == Lisp_Cons && Flength (event) == 5)
(XTYPE (event) == Lisp_Cons)
/* Access the components of composite events. */
#define EVENT_HEAD(event) (Fnth (0, (event)))
#define EVENT_WINDOW(event) (Fnth (1, (event)))
#define EVENT_BUFFER_POSN(event) (Fnth (2, (event)))
#define EVENT_SCROLLBAR_BUTTON EVENT_BUFFER_POSN
#define EVENT_WINDOW_POSN(event) (Fnth (3, (event)))
#define EVENT_TIMESTAMP(event) (Fnth (4, (event)))
/* Return the head of an event. This works on composite and simple events. */
#define EVENT_HEAD(event) \
(EVENT_HAS_PARAMETERS (event) ? XCONS (event)->car : (event))
/* Return the starting and ending locations of a composite event. */
#define EVENT_START(event) (XCONS (XCONS (event)->cdr)->car)
#define EVENT_END(event) (XCONS (XCONS (XCONS (event)->cdr)->cdr)->car)
/* Return the fields of a position. */
#define POSN_WINDOW(posn) (XCONS (posn)->car)
#define POSN_BUFFER_POSN(posn) (XCONS (XCONS (posn)->cdr)->car)
#define POSN_SCROLLBAR_BUTTON POSN_BUFFER_POSN
#define POSN_WINDOW_POSN(posn) (XCONS (XCONS (XCONS (posn)->cdr)->cdr)->car)
#define POSN_TIMESTAMP(posn) \
(XCONS (XCONS (XCONS (XCONS (posn)->cdr)->cdr)->cdr)->car)
/* Some of the event heads. */
extern Lisp_Object Qvscrollbar_part, Qvslider_part;
@ -52,11 +60,11 @@ extern Lisp_Object Qhscrollbar_part, Qhslider_part;
extern Lisp_Object Qhthumbleft_part, Qhthumbright_part;
/* Properties on event heads. */
extern Lisp_Object Qevent_kind, Qevent_unmodified;
extern Lisp_Object Qevent_kind, Qevent_symbol_elements;
/* Getting an unmodified version of an event head. */
#define EVENT_HEAD_UNMODIFIED(event_head) \
(Fget ((event_head), Qevent_unmodified))
(Fcar (Fget ((event_head), Qevent_symbol_elements)))
/* The values of Qevent_kind properties. */
extern Lisp_Object Qfunction_key, Qmouse_click, Qmouse_movement;